This weird claim that evs don't work out in practice because they can't regen is just the latest example of FUD or extreme misunderstanding of the market. Just like people said it was impossible to make a compelling ev, that you could never go a long way, that you could never charge it fast, this latest claim is just silly. Teslas since 2012 (S and later) have had great recharging ability when slowing down. It's not 100%, nothing can be.